EP4365604A1 - Measurement result display device, measurement system, and measurement result display processing program - Google Patents

Measurement result display device, measurement system, and measurement result display processing program Download PDF

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Publication number
EP4365604A1
EP4365604A1 EP22832506.4A EP22832506A EP4365604A1 EP 4365604 A1 EP4365604 A1 EP 4365604A1 EP 22832506 A EP22832506 A EP 22832506A EP 4365604 A1 EP4365604 A1 EP 4365604A1
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EP
European Patent Office
Prior art keywords
measurement
measurement result
result display
impedances
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22832506.4A
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German (de)
English (en)
French (fr)
Inventor
Naoya Kitamura
Junji Iijima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hioki EE Corp
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Hioki EE Corp
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Filing date
Publication date
Application filed by Hioki EE Corp filed Critical Hioki EE Corp
Publication of EP4365604A1 publication Critical patent/EP4365604A1/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
    • G01R13/0218—Circuits therefor
    • G01R13/0236—Circuits therefor for presentation of more than one variable
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D7/00—Indicating measured values
    • G01D7/02—Indicating value of two or more variables simultaneously
    • G01D7/08—Indicating value of two or more variables simultaneously using a common indicating element for two or more variables
    • G01D7/10—Indicating value of two or more variables simultaneously using a common indicating element for two or more variables giving indication in co-ordinate form
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/389—Measuring internal impedance, internal conductance or related variables

Definitions

  • the present invention relates to a measurement result display apparatus capable of displaying measurement results on a display unit based on measurement result data produced by encoding impedance values measured by a measurement apparatus, a measurement system equipped with this measurement result display apparatus, and a measurement result display processing program that causes a processing unit of a measurement result display apparatus to execute a measurement result display process.
  • the present applicant disclosed an impedance measurement apparatus capable of individually measuring the respective contact resistances of a Hi-side and a Lo-side source terminal and a Hi-side and a Lo-side sensing terminal for an object to be measured.
  • the impedance measurement apparatus disclosed by the applicant is equipped with a Hi-side source terminal and a Lo-side source terminal (that is, source terminals for supplying a measurement signal: hereinafter also referred to as the "terminals Hc and Lc" ) and a Hi-side sensing terminal and a Lo-side sensing terminal (that is, sensing terminals for signal detection: hereinafter also referred to as the "terminals Hp and Lp”), a measurement signal source, and a measurement unit.
  • This impedance measurement apparatus is configured so that in a state where one electrode (as one example, the positive electrode) of a battery as the object to be measured has been connected to the terminals Hc and Hp and the other electrode (as one example, the negative electrode) has been connected to the terminals Lc and Lp, it is possible to measure a connection resistance RHC between the terminal Hc and the positive electrode, a connection resistance RLC between the terminal Lc and the negative electrode, a connection resistance between the terminal Hp and the positive electrode, and a connection resistance between the terminal Lp and the negative electrode, together with the impedance (in this example, an "internal resistance Rx of the battery") of the object to be measured.
  • This impedance measurement apparatus is further equipped with an output unit composed of a display apparatus.
  • the impedance measurement apparatus disclosed by the present applicant is capable of outputting (displaying) the internal resistance Rx of a battery, the connection resistances RHC and RHP between the terminals Hc and Hp and the positive electrode, and the connection resistances RLC and RLP between the terminals Lc and Lp and the negative electrode.
  • PTL1 Japanese Laid-open Patent Publication No. 2020-076600 (see pages 8 to 28 and FIGS. 1 to 4 )
  • the impedance measurement apparatus disclosed by the present applicant has the following problem to be solved.
  • the impedance measurement apparatus disclosed by the present applicant is configured to be capable of displaying (outputting) values such as the internal resistance Rx of a battery as the object to be measured, the connection resistances RHC and RHP between the terminals Hc and Hp and the positive electrode, and the connection resistances RLC and RLP between the terminals Lc and Lp and the negative electrode using a display apparatus (or "output unit").
  • this type of measurement apparatus is installed at a manufacturing facility for batteries or the like and products are determined to be defective or non-defective based on the measurement results
  • the terminals Hc, Lc, Hp, and Lp may gradually wear out and/or dirt may adhere to the terminals Hc, Lc, Hp, and Lp.
  • the measurement result that is, the internal resistance Rx of each product
  • the impedance measurement apparatus disclosed by the present applicant uses a configuration where every time a measurement process is performed on an object to be measured (or "product", here a battery), the contact resistances RHC, RLC, RHP, and RLP measured by the measurement process are displayed as numeric values together with the internal resistance Rx.
  • Operations such as checking the extent of terminal wear and checking whether there is adhering foreign matter, and operations such as replacing and/or cleaning a terminal cannot be performed while a production line of the object to be measured (here, batteries) is running. Accordingly, it is preferable for these operations to be performed at predetermined timing when the production line is not running so as to not interfere with the manufacturing plan for the product.
  • a production line of the object to be measured here, batteries
  • the present invention was conceived in view of the above problems to be solved and has a principal object of providing a measurement result display apparatus, a measurement system, and a measurement result display processing program capable of displaying changes over time in measured impedances in an easy to identify manner. It is a further object of the present invention to provide a measurement result display apparatus, a measurement system, and a measurement result display processing program that make it easy to identify via which measurement terminal a displayed impedance was measured.
  • a measurement result display apparatus comprises: a processing unit that executes a measurement result display process that displays measurement results on a display unit based on measurement result data produced by encoding impedances that have been measured by a measurement apparatus,wherein during the measurement result display process, the processing unit displays, on the display unit and based on a plurality of measurement result data of impedances that satisfy a predetermined comparison condition and were produced by the measurement apparatus at different measurement times, a first measurement result display screen in which the impedances for respective measurement result data are aligned in order of measurement time.
  • a measurement system comprises: the measurement result display apparatus and the measurement apparatus, wherein the measurement system is configured to generate the measurement result data using the measurement apparatus and to display the measurement results using the measurement result display apparatus.
  • a measurement result display processing program that causes a processing unit of a measurement result display apparatus, which includes the processing unit that executes a measurement result display process that has a display unit display measurement results based on measurement result data produced by encoding impedances that have been measured by a measurement apparatus, to execute the measurement result display process, the program causing the processing unit to execute, during the measurement result display process, a process that displays, on the display unit and based on a plurality of measurement result data of impedances that satisfy a predetermined comparison condition and were produced by the measurement apparatus at different measurement times, a first measurement result display screen in which impedances for each measurement result data are aligned in order of measurement time.
  • the measurement result display apparatus With the measurement result display apparatus, the measurement system, and the measurement result display processing program, by referring to impedances displayed on a first measurement result display screen, it is possible to determine whether impedances is changing over time and possible to easily and reliably determine the rate of change of impedances. By doing so, it is possible to reliably and easily estimate what kind of impedances will be measured for the object to be measured at what timing. Accordingly, as one example, by using the measurement result display apparatus, the measurement system, and the measurement result display processing program when operations such as checking the state, replacement, or cleaning of a measurement terminal are performed based on the contact resistance between the measurement terminal and the object to be measured, it is possible to favorably determine appropriate timing for performing such operations.
  • the processing unit displays a graph indicating the impedances for each measurement result data in the first measurement result display screen. Also, with the measurement result display processing program according to the present invention, wherein during the measurement result display process, the processing unit is caused to execute a process that displays a graph indicating the impedances for each measure result data on the first measurement result display screen.
  • the measurement result display apparatus With the measurement result display apparatus, the measurement system, and the measurement result display processing program, compared to when numerical values of the contact resistance are displayed on the first measurement result display screen for example, it is possible to more reliably and more easily identify whether the contact resistance has changed over time and the rate of change in the contact resistance based on graphs of impedances . By doing so, it is possible to more reliably and more easily estimate what kind of impedances will be measured for the object to be measured at what timing.
  • the processing unit displays, on the display unit and based on a plurality of types of measurement result data measured by the measurement apparatus via a plurality of measurement terminals connected to the plurality of measurement terminal connecting portions of the measurement apparatus, a second measurement result display screen in which impedances for each measurement result data are aligned corresponding to an arrangement on the measurement apparatus of the measurement terminal connecting units.
  • the processing unit is caused to execute a process of displaying, on the display unit and based on a plurality of types of measurement result data measured by the measurement apparatus via a plurality of measurement terminals connected to the plurality of measurement terminal connecting portions of the measurement apparatus, a second measurement result display screen in which impedances for each measurement result data are aligned corresponding to an arrangement on the measurement apparatus of the measurement terminal connecting units.
  • the measurement result display apparatus With the measurement result display apparatus, the measurement system, and the measurement result display processing program, it is possible to reliably and easily identify via which of the measurement terminals (that is, which of the measurement terminals connected to the measurement terminal connecting portions ) impedances displayed on the second measurement result display screen were measured. Accordingly, as one example, by using the measurement result display apparatus, the measurement system, and the measurement result display processing program when performing a checking operation on the state of the measurement terminal or performing a replacement or cleaning operation on the measurement terminal based on the contact resistance between the measurement terminal and an the object to be measured, it is possible to reliably and easily identify the measurement terminal whose impedances was measured and is to be subjected to the operation, so that the operation can be performed quickly and reliably.
  • the processing unit executes a notification process that gives notification that the displayed impedance satisfies the predetermined notification condition.
  • the processing unit is caused to execute a notification process that gives notification that the displayed impedance satisfies the predetermined notification condition.
  • the measurement result display apparatus With the measurement result display apparatus, the measurement system, and the measurement result display processing program, it is possible to reliably and easily identify that a impedances has satisfied the predetermined notification condition without constantly monitoring impedances displayed on the first measurement result display screen and/or impedances displayed on the second measurement result display screen.
  • the measurement result display apparatus With the measurement result display apparatus, measurement system, and measurement result display processing program according to the present invention, it is possible to display changes over time in measured impedances in an easy to identify manner. Also, according to the measurement result display apparatus, measurement system, and measurement result display processing program according to the present invention, it is possible to easily identify via which measurement terminal a displayed impedance was measured.
  • a measurement system 100 depicted in FIG. 1 is one example of a "measurement system" for the present invention, includes a measurement apparatus 1 and a mobile terminal 10, and is configured, in the same way as the impedance measurement apparatus disclosed by the present applicant in the cited patent literature, so as to be capable of measuring the internal resistance of an object to be measured (as one example, a battery, not illustrated) and the contact resistances (one example of "impedances" for the present invention) between measurement terminals and the object to be measured (in the present embodiment, the electrodes of a battery) and displaying as measurement results.
  • an object to be measured as one example, a battery, not illustrated
  • the contact resistances one example of "impedances" for the present invention
  • the measurement apparatus 1 integrally includes a " measurement apparatus” and a “measurement result display apparatus” , and as described above, constructs, in combination with the mobile terminal 10, the measurement system 100 according to the present embodiment, which is one example of a “measurement system” for the present invention.
  • the measurement apparatus 1 also constructs a "measurement system” by itself.
  • This measurement apparatus 1 includes a measurement unit 2, a communication unit 3, an operation unit 4, a display unit 5, a processing unit 6, and a storage unit 7.
  • the measurement unit 2 the operation unit 4, the display unit 5, the processing unit 6, and the storage unit 7 together construct a "measurement apparatus" for the present invention
  • the operation unit 4 the display unit 5, the processing unit 6, and the storage unit 7 together construct a "measurement result display apparatus that is integrally provided with a display unit (the display unit 5)".
  • the measurement unit 2 has a Hi-side source terminal and a Lo-side source terminal (source terminals for supplying measurement signals or the "terminals Hc and Lc", one example of "a plurality of measurement terminals" for the present invention), a Hi-side sensing terminal and a Lo-side sensing terminal (sensing terminals for detecting signals, or the "terminals Hp and Lp", another example of "a plurality of measurement terminals” for the present invention), and a measurement signal source (none of which are illustrated).
  • the measurement unit 2 is configured to be capable of executing a measurement process, which measures the internal resistance of a battery, under the control of the processing unit 6.
  • measurement terminal connecting portions 2a to 2d are arranged on the front panel.
  • the measurement apparatus 1 is configured so that by connecting the terminals Hc, Lc, Hp, and Lp described above to the measurement terminal connecting portions 2a to 2d, respectively, it is possible to execute a measurement process that measures a predetermined electrical parameter via the terminals Hc, Lc, Hp, and Lp.
  • the measurement unit 2 is configured to be capable of executing, as the "measurement process", a process that measures, together with the internal resistance of the battery, the contact resistance between the terminal Hc and the positive electrode of the battery, the contact resistance between the terminal Lc and the negative electrode of the battery, the contact resistance between the terminal Hp and the positive electrode, and the contact resistance between the terminal Lp and the negative electrode, generates measurement result data Dma produced by encoding the contact resistance between the terminal Hc and the positive electrode, measurement result data Dmb produced by encoding the contact resistance between the terminal Lc and the negative electrode, measurement result data Dmc produced by encoding the contact resistance between the terminal Hp and the positive electrode, measurement result data Dmd produced by encoding the contact resistance between the terminal Lp and the negative electrode, and measurement result data Dmr produced by encoding the internal resistance of the battery, and outputs to the processing unit 6.
  • the measurement result data Dma to Dmd described above correspond
  • the communication unit 3 is constructed of a wireless communication module that conforms to Bluetooth (registered trademark) standard, and as described later, is configured to be capable of transmitting and receiving various types of data to and from various devices that are compatible with Bluetooth communication, such as the mobile terminal 10, under control by the processing unit 6.
  • the operation unit 4 is provided with operation switches that make it possible to execute operations such as a setting operation for operating conditions of the measurement apparatus 1, an operation that issues start and stop instructions for the measurement process by the measurement unit 2, and a switching operation for various display screens, described later, displayed on the display unit 5.
  • the display unit 5 is one example of a "display unit” , and displays various display screens such as an operating condition setting screen (not illustrated) for setting operating conditions of the measurement apparatus 1, a measurement result display screen 20 (see FIGS. 2 and 3 ), and a measurement result display screen 30 (see FIG. 4 ), under the control of the processing unit 6.
  • an operating condition setting screen not illustrated
  • a measurement result display screen 20 see FIGS. 2 and 3
  • a measurement result display screen 30 see FIG. 4
  • the processing unit 6 is one example of a "processing unit” for the present invention and performs overall control of the measurement apparatus 1 according to a processing program Dp (one example of a "measurement result display processing program” for the present invention).
  • the processing unit 6 controls the measurement unit 2 to execute the measurement process described above and has the measurement result data Dma to Dmd and Dmr outputted from the measurement unit 2 stored in the storage unit 7.
  • the processing unit 6 also has the display unit 5 display a resistance value (the internal resistance of the battery to be measured) that was encoded in the measurement result data Dmr.
  • the processing unit 6 has the display unit 5 display one of the measurement result display screens 20 and 30 and thereby has the display unit 5 display the resistance values (that is, the contact resistances between the terminals and the electrodes) encoded in the measurement result data Dma to Dmd (one example of a "measurement result display process").
  • the measurement apparatus 1 according to the present embodiment is configured so that through the operation of the measurement unit 2, one of the measurement result display screen (not illustrated) displaying the internal resistance and the measurement result display screens 20 and 30 is selected and the selected display screen is displayed on the display unit 5.
  • the processing unit 6 in the measurement apparatus 1 is also configured to generate display data Dd in parallel with the displaying of the measurement result display screens 20 and 30 or the like on the display unit 5 and to transmit the generated display data Dd from the communication unit 3 to the mobile terminal 10 so that a display unit of the mobile terminal 10 can display a display screen (not illustrated) that is similar to the measurement result display screen 20, 30, or the like.
  • the measurement apparatus 1 is configured so that in addition to displaying a similar display screen to the measurement result display screen displayed on the display unit 5 of the measurement apparatus 1 on the display unit of the mobile terminal 10, by setting the operating conditions of the measurement apparatus 1 in advance, it is possible to display a similar display screen to the measurement result display screen 30 on the display unit of the mobile terminal 10 in a state where the measurement result display screen 20 is displayed on the display unit 5 of the measurement apparatus 1 or to display a similar display screen to the measurement result display screen 20 on the display unit of the mobile terminal 10 in a state where the measurement result display screen 30 is displayed on the display unit 5 of the measurement apparatus 1.
  • the storage unit 7 stores a processing program Dp capable of specifying the procedures of various processes executed by the processing unit 6, computation results of the processing unit 6, the measurement result data Dma to Dmd and Dmr described above, and the like.
  • the mobile terminal 10 is a mobile information processing terminal capable of transmitting and receiving various data to and from devices, such as the measurement apparatus 1, that are compatible with Bluetooth communication.
  • the mobile terminal 10 is composed of a general-purpose tablet or smartphone in which a dedicated data processing program for executing the displaying of a display screen based on the display data Dd transmitted from the measurement apparatus 1 has been installed.
  • a screen displaying program installed in the mobile terminal 10 together with the processing program Dp described above constructs a "measurement result display processing program" for the present invention
  • a processing unit of the mobile terminal 10 that displays a similar display screen to the measurement result display screens 20 and 30 on the display unit of the measurement apparatus 1 in keeping with this program constructs together with the processing unit 6 of the measurement apparatus 1, a "processing unit" for the present invention.
  • the measurement system 100 As a method of using the measurement system 100, as one example, a method where the measurement system 100 is installed as part of the manufacturing equipment on a production line for batteries, the internal resistances of the batteries that are manufactured one after another are measured by the measurement apparatus 1, and the measurement results are monitored (that is, the batteries are determined to be defective or non-defective) will be described.
  • a moving mechanism for moving the terminals Hc, Lc, Hp, and Lp so as to relatively approach and move away from the electrodes of a battery that is, the positive electrode and the negative electrode
  • a conveying mechanism for conveying a battery to a measurement processing position, and the like are the same as corresponding apparatuses used in various known manufacturing equipment, detailed description and illustration of such mechanisms have been omitted.
  • tasks such as installation of the measurement apparatus 1 on a production line, installation of the program described above in the mobile terminal 10, pairing for wireless communication between (the communication unit 3 of) the measurement apparatus 1 and the mobile terminal 10, and the like are assumed to have been completed and description thereof is omitted.
  • the measurement apparatus 1 On the production line where the measurement apparatus 1 (the measurement system 100) has been installed, every time a new battery is manufactured, the internal resistance of the battery is measured by the measurement apparatus 1 and is displayed on the display unit 5.
  • the terminals Hc, Lc, Hp, and Lp of the measurement apparatus 1 are brought into contact with both electrodes of the manufactured battery, the contact resistances and the internal resistance are measured by the measurement unit 2 via these terminals, and the measurement result data Dma to Dmd and Dmr is generated by encoding the measured internal resistance.
  • the measurement apparatus 1 is configured so that a measurement result display screen (not illustrated) displaying the "internal resistance of the battery" which is measured for each battery is displayed as an initial display screen. Accordingly, in keeping with the processing process Dp, the processing unit 6 has the measurement result display screen on the display unit 5 display the internal resistance that has been encoded in the measurement result data Dmr outputted from the measurement unit 2. By referring to this internal resistance, it is possible to determine whether a manufactured battery is defective or non-defective.
  • the measurement apparatus 1 uses a configuration where when the internal resistance measured as described above exceeds a normal determination value that has been set in advance, the internal resistance is displayed so as to flash on the display unit 5 and a warning sound is emitted from a speaker (not illustrated). Accordingly, it is possible to reliably and easily identify defective batteries for which a high internal resistance that exceeds the normal determination value has been measured.
  • this measurement apparatus 1 (or measurement system 100) it is also possible to operate the operation unit 4 to display the measurement result display screen 20 depicted in FIG. 2 on the display unit 5 in place of the measurement result display screen described above that displays the internal resistance of the object to be measured (here, a battery).
  • This measurement result display screen 20 is one example of a "first measurement result display screen” for the present invention, and is a screen configuration that displays a "contact resistance between each terminal and each electrode" in order of measurement time for each of a plurality of measurement result data Dma to Dmd (one example of "a plurality of measurement result data of impedances that satisfy a predetermined comparison condition and were produced by the measurement apparatus at different measurement times") generated by measurement processes on respective batteries that are manufactured one after another on a production line on which the measurement apparatus 1 has been installed.
  • a measurement result display 21a of a graph (in the present embodiment, a line graph) that makes it possible to determine the contact resistance between the terminal Hc and the positive electrode at each measurement time (that is, for each battery to be measured)
  • a measurement result display 21b of a graph (a line graph) that makes it possible to determine the contact resistance between the terminal Lc and the negative electrode at each measurement time
  • a measurement result display 21c of a graph (a line graph) that makes it possible to determine the contact resistance between the terminal Hp and the positive electrode at each measurement time
  • a measurement result display 21d of a graph (a line graph) that makes it possible to determine the contact resistance between the terminal Lp and the positive electrode for each measurement time (for each battery to be measured) are displayed (hereinafter when no distinction is made between the measurement result displays 21a to 21d, these displays are collectively referred to as the "measurement result display 21").
  • the characters "Hc” are displayed to make it possible to identify that values for the terminal Hc are indicated
  • the characters "Lc” are displayed to identify that values for the terminal Lc are indicated
  • the characters "Hp” are displayed to make it possible to identify that values for the terminal Hp are indicated
  • the characters "Lp” are displayed to make it possible to identify that values for the terminal Lp are indicated.
  • a warning level display 22a that indicates a preset first warning value (a value that is within a range of normal values but gives a warning that a slightly high contact resistance has been measured) and a warning level display 22b indicating a preset second warning value (a value that is still within the range of normal values but is higher than the first warning value and gives warning that a contact resistance indicating that it is necessary to immediately check the terminal where such value was measured) are also displayed in the measurement result display screen 20.
  • a cursor display 23 for selecting measurement values at a freely chosen time out of the contact resistances at each measurement time displayed in the measurement result displays 21a to 21d (graphs) is also displayed in the measurement result display screen 20.
  • this cursor display 23 is automatically moved to the position where the latest measured values (contact resistances) are selected (that is, the ends of the measurement result displays 21a to 21d), with it being possible to move the cursor to a position that selects any freely chosen measurement time (that is, any of the objects being measured) through an operation of the operation unit 4.
  • measurement result displays 21a to 21d for the plurality of measurement result data Dma to Dmd generated during the measurement processes performed on each battery manufactured one after the other from the start of the production line on November 8, 2020 are displayed on the measurement result display screen 20.
  • the measurement result displays 21a to 21c by referring to the measurement result displays 21a to 21c, it is possible to identify that the contact resistances of the terminals Hc, Lc, and Hp have not significantly changed, and by referring to the measurement result display 21d, it is possible to identify that the contact resistance of the terminal Lp is gradually increasing.
  • the contact resistance between the terminal Lp and the negative electrode may reach the first warning value (this is one example of "when the impedance displayed based on the measurement result data satisfies a predetermined notification condition").
  • a measurement result display 21d indicating that the contact resistance has reached the warning level display 22a is displayed on the measurement result display screen 20, the characters "Lp" are displayed so as to flash, and a warning sound is emitted from a speaker (not illustrated) (one example of "a notification process that gives notification that the displayed impedance satisfies the predetermined notification condition").
  • the rate of change in the contact resistance determined based on the measurement result display 21d differs to the previous rate of change and has suddenly increased (when the latest measurement value is positioned higher than an extension of the slope of a graph of the measurement values previously measured, as one example, when the latest measurement value has suddenly changed to a value that exceeds the second warning value), a checking, replacement or cleaning operation is performed on the terminal for which the large contact resistance was measured.
  • the display is switched from the measurement result display screen 20 to the measurement result display screen 30.
  • the measurement result display screen 30 is one example of a "second measurement result display screen" for the present invention, and is a screen configuration where a measurement result display 31a based on measurement result data Dma for the terminal Hc, a measurement result display 31b based on measurement result data Dmb for the terminal Lc, a measurement result display 31c based on measurement result data Dmc for the terminal Hp, and a measurement result display 31d based on measurement result data Dmd for the terminal Lp are displayed in alignment corresponding to the arrangement on the front panel of the measurement apparatus 1 of the measurement terminal connecting portions 2a to 2d to which the respective terminals Hc, Lc, Hp, and Lp are connected (hereinafter, when no distinct is made between the measurement result displays 31a to 31d, such displays are collectively referred to as the "measurement result displays 31").
  • a screen configuration like the measurement result display screen 30a (another example of a "second measurement result display screen" for the present invention) depicted in FIG. 5 , where the measurement result displays 31b, 31d, 31c, and 31a are displayed side by side in a horizontal layout corresponding to the layout on the front panel of the measurement terminal connecting portions 2b, 2d, 2c, 2a to which the terminals Lc, Lp, Hp, Hc are connected.
  • the measurement result display screen 30 displays, together with the measurement result displays 31a to 31d, a layout diagram 32 that enables the contact states between the terminals Hc, Lc, Hp, and Lp and the battery being measured to be visually understood.
  • the layout diagram 32 is composed of a symbol depicting a battery, symbols (in the illustrated example, arrows) indicating the respective terminals Hc, Lc, Hp, and Lp, symbols depicting the respective contact resistances, the characters "Hc” indicating that the measurement result display 31a is the contact resistance for the terminals Hc, the characters “Lc” indicating that the measurement result display 31b is the contact resistance for the terminals Lc, the characters “Hp” indicating that the measurement result display 31c is the contact resistance for the terminals Hp, and the characters “Lp” indicating that the measurement result display 31d is the contact resistance for the terminals Lp.
  • the layout diagram 32a depicted in FIG. 5 is displayed inside the measurement result display screen 30a in place of the layout diagram 32 of the measurement result display screen 30 displayed by the measurement apparatus 1.
  • the display is switched from the measurement result display screen 20 to the measurement result display screen 30 in a state where the contact resistance of the terminal Lp has reached the first warning value
  • the characters "Lp" described above are displayed so as to flash and a warning sound is emitted from a speaker (not illustrated) (another example of the "a notification process that gives notification that the displayed impedance satisfies the predetermined notification condition").
  • a notification process that gives notification that the displayed impedance satisfies the predetermined notification condition.
  • An operator who has seen this measurement result display screen 30 can grasp, based on the flashing display of the characters "Lp" described above on the measurement result display screen 30 and/or the values of the measurement result display 31d, that the contact resistance of the terminal (in the present embodiment, the terminal Lp) connected to the measurement terminal connecting portion 2d, out of the measurement terminal connecting portions 2a to 2d, disposed at a position corresponding to the measurement result display 31d has increased. Accordingly, it is possible to quickly start a checking, replacement, or cleaning operation on the terminal Lp connected to the measurement result display 21d and thereby restore the contact resistance of the terminal Lp to a sufficiently low value.
  • the measurement system 100 it is possible to grasp the contact resistances of the terminals Hc, Lc, Hp, and Lp by referring to the display unit of the mobile terminal 10 (that is, a display screen that is similar to the measurement result display screens 20 and 30) in place of the display unit 5 (the measurement result display screens 20 and 30) of the measurement apparatus 1.
  • the processing unit 6 displays, based on a plurality of measurement result data Dma to Dmd that satisfy a predetermined comparison condition and were measured by the measurement unit 2 measuring impedance at different measurement times, the measurement result display screen 20 including the measurement result displays 21a to 21d where contact resistances for each of the measurement result data Dma to Dmd have been aligned in order of measurement time.
  • This measurement system 100 (or measurement apparatus 1) includes a "measurement result display apparatus” and a " measurement apparatus 1" .
  • the processing unit 6 of the measurement apparatus 1 is caused to execute the "measurement result display process" described above.
  • the measurement apparatus 1, the measurement system 100, and the processing program Dp by referring to the measurement result displays 21a to 21d displayed on the measurement result display screen 20, it is possible to determine whether each contact resistance is changing over time and possible to easily and reliably determine the rate of change of each contact resistance. By doing so, it is possible to reliably and easily estimate what kind of contact resistance will be measured for the object to be measured at what timing. Accordingly, as one example, by using the measurement apparatus 1, the measurement system 100, and the processing program Dp when operations such as checking the state, replacement, or cleaning of a terminal are performed based on the contact resistance between the terminal and an electrode, it is possible to favorably determine appropriate timing for performing such operations.
  • the processing unit 6 displays graphs (the measurement result displays 21a to 21d) indicating the contact resistance for each measurement result data Dma to Dmd on the measurement result display screen 20.
  • the processing program Dp also causes the processing unit 6 of the measurement apparatus 1 to execute the "measurement result display process" described above.
  • the measurement apparatus 1 the measurement system 100, and the processing program Dp, compared to when numerical values of the contact resistance are displayed on the "first measurement result display screen" for example, it is possible to more reliably and more easily identify whether the contact resistance has changed over time and the rate of change in the contact resistance based on graphs of contact resistance (the measurement result displays 21a to 21d) . By doing so, it is possible to more reliably and more easily estimate what kind of contact resistance will be measured for the object to be measured at what timing.
  • the processing unit 6 displays, on the display unit 5 and based on the measurement result data Dma to Dmd measured by the measurement unit 2 via the plurality of terminals Hc, Lc, Hp, and Lp that are connected to the plurality of measurement terminal connecting portions 2a to 2d of the measurement unit 2, the measurement result display screen 30 including the measurement result displays 31a to 31d in which the contact resistances are aligned for each measurement result data Dma to Dmd corresponding to the arrangement of the measurement terminal connecting portions 2a to 2d on the measurement apparatus 1.
  • the processing program Dp also causes the processing unit 6 of the measurement apparatus 1 to execute the "measurement result display process" described above.
  • the measurement apparatus 1, the measurement system 100, and the processing program Dp it is possible to reliably and easily identify via which of the terminals Hc, Lc, Hp, and Lp (that is, which of the terminals Hc, Lc, Hp, and Lp connected to the measurement terminal connecting portions 2a to 2d) the measurement result displays 31a to 31d displayed on the measurement result display screen 30 were measured.
  • the measurement apparatus 1, the measurement system 100, and the processing program Dp when performing a checking operation on the state of a terminal or performing a replacement or cleaning operation on a terminal based on the contact resistance between the terminal and an electrode, it is possible to reliably and easily identify the terminal whose contact resistance was measured and is to be subjected to the operation, so that the operation can be performed quickly and reliably.
  • the processing unit 6 when displaying, during the "measurement result display process", a contact resistance based on the measurement result data Dma to Dmd that satisfies a "predetermined notification condition", the processing unit 6 also executes a "notification process” (in this example, a flashing display of characters indicating the terminal name of the terminal and/or characters indicating the measured contact resistance) that gives notification that the displayed contact resistance satisfies the "predetermined notification condition".
  • the processing program Dp also causes the processing unit 6 of the measurement apparatus 1 to execute the "measurement result display process" described above.
  • the measurement apparatus 1, the measurement system 100, and the processing program Dp it is possible to reliably and easily identify that a contact resistance has satisfied the "predetermined notification condition" without constantly monitoring the measurement result displays 21a to 21d displayed on the measurement result display screen 20 and/or the measurement result displays 31a to 31d displayed on the measurement result display screen 30.
  • the configurations of the "measurement result display apparatus" and the “measurement system” and the processing content of the “measurement result display processing program” are not limited to the examples described above.
  • the configuration and processing content for displaying line graphs of contact resistances (the measurement result displays 21a to 21d) on the measurement result display screen 20 corresponding to the "first measurement result display screen” for the present invention have been described as one example, in place of this configuration and processing content, it is also possible to use a configuration and processing content that display contact resistances as bar graphs in the "first measurement result display screen", or a configuration and processing content that display the contact resistances as numerical values in the "first measurement result display screen” (not illustrated).
  • the predicted values indicated by the predicted value displays 24a to 24d can be calculated as one example based on the latest measurement result data Dma to Dmd and the rate of change in the values of each measurement result data Dma to Dmd, which is based on a predetermined number of measurement result data Dma to Dmd that were generated (measured) immediately before the latest data.
  • a configuration and a processing procedure that display contact resistances (impedances) measured during a measurement process performed for each product when the same type of products (in the present embodiment, batteries) are manufactured one after another as the object to be measured that is, a configuration and processing content where a plurality of objects to be measured are successively measured and the contact resistances (impedances) are displayed for each object to be measured
  • a configuration and processing content that display "impedances" measured during a plurality of measurement processes for a single object to be measured a configuration and processing content where one object to be measured is repeatedly measured and a plurality of impedances are displayed for that one object to be measured.
  • changes over time in measured impedance can be displayed in an easy to identify manner. Also, according to the measurement result display apparatus, measurement system, and measurement result display processing program according to the present invention, it is possible to easily identify via which measurement terminal a displayed impedance was measured. This means that the present invention can be widely applied to measurement result display apparatuses, measurement systems, and measurement result display processing programs.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Indicating Measured Values (AREA)
EP22832506.4A 2021-07-01 2022-03-25 Measurement result display device, measurement system, and measurement result display processing program Pending EP4365604A1 (en)

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JP2021109939A JP2023007002A (ja) 2021-07-01 2021-07-01 測定結果表示装置、測定システムおよび測定結果表示処理用プログラム
PCT/JP2022/014240 WO2023276344A1 (ja) 2021-07-01 2022-03-25 測定結果表示装置、測定システムおよび測定結果表示処理用プログラム

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JPH0255779U (ja) * 1988-10-14 1990-04-23
JP5785742B2 (ja) * 2011-03-03 2015-09-30 株式会社堀場製作所 測定装置
JP6296700B2 (ja) * 2013-05-28 2018-03-20 日置電機株式会社 測定結果表示装置、測定システムおよび測定結果表示用プログラム
JP6110251B2 (ja) * 2013-08-07 2017-04-05 日置電機株式会社 測定結果表示装置、測定システムおよび測定結果表示用プログラム
JP2015040775A (ja) * 2013-08-22 2015-03-02 日置電機株式会社 測定データ処理装置、測定システムおよび測定データ処理用プログラム
JP6491852B2 (ja) * 2014-10-30 2019-03-27 日置電機株式会社 回路素子測定装置
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